GameCube strange audio

[NNSS]

Hey guys, I have a question about my gamecube's audio.
I'm running the audio off of the composite output, and using a PAM8403 Double Track Power Amplifier to get stereo sound. However, regardless of what volume I set the sound to, and whether or not I put resistors on the + audio lines for the speakers, I get very distorted and rattly bass sounds. I have tried 3 other amps that worked perfectly on their own, with other inputs, and I have used 4 different sets of speakers. I am beginning to believe that the poor audio quality is caused by the GameCube itself. Does anyone know what I can do to fix this? Thanks.

 

[Blargaman91]

I don't know if you ever got your question answered, but one cause of this is that the voltage going to the audio pre-amp is too low. It should be 12v, ideally. It can go lower, but 5v is probably too low.

 

[NNSS]

Thanks.

So, instead of doing this (viewtopic.php?f=36&t=2187) sound fixe, should i just directly wire my battery to that area?

 

[Blargaman91]

What voltage are your batteries? You can wire it straight to your batteries' output as long as it's less than 16v.

 

[NNSS]

theyre 7.4v